Game show buzzer - Electronic Circuits Projects Diagrams Free

Wired · 17th February 2003, 03:06 PM

I need a diagram for a game show lights and buzzer setup. One that has three buttons each on two or three teams and one setup with just two buttons. They need to be set up so that the buzzer goes off when any button is pushed and a light lights up at only the first button pushed.
Thank you!

bogdanfirst · 17th February 2003, 08:46 PM

so yuo need something like a robingo button?
the first person to push wins?

Wired · 17th February 2003, 11:37 PM

bogdanfirst · 18th February 2003, 05:42 PM

ok, here is a schematic.
it is used for as many contentstants you want...

**kinjalgp** · 18th February 2003, 05:55 PM

The schematic is not at all clear. Look at the floating connections.

bogdanfirst · 18th February 2003, 06:14 PM

no actually i left them floateing to suggest that you can add as many modules as you want.
theay are not floating, they go somewere.

**kinjalgp** · 18th February 2003, 06:33 PM

You have made a closed loop in the circuit on the left side. I know you are trying to say that the points are connected somewhere on the right side schematic but this is not the exact way of showing that. You know here all the points seem to be short circuited. You can just name the signal to show that there is a connection between two points which are not joined through a wire.

bogdanfirst · 18th February 2003, 07:32 PM

i drew the scehmatic fast.
i will draw a new one when i have time. please exzuse me for that.!

Sebi · 18th February 2003, 09:21 PM

The circuit is O.K., but module number4 and mod.num5 changed.I mean for LED no need a transistor, simply hook up to 4011 pin10.
And connect the buzzer with NPN transistor to pin11.

Wired · 18th February 2003, 10:43 PM

Thanks for all the input! I am enjoying this.

bogdanfirst · 19th February 2003, 07:57 PM

thats right.
i noticed that, the circuit is origianly taken from an elektor magazine form 70' . i agree the 4011 can handle enough curent to drive the led.
i will scan the ciruit as soon as i set up my scanner, because i dont use it very often

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

17th February 2003, 03:06 PM	(permalink)
Wired	Game show buzzer I need a diagram for a game show lights and buzzer setup. One that has three buttons each on two or three teams and one setup with just two buttons. They need to be set up so that the buzzer goes off when any button is pushed and a light lights up at only the first button pushed. Thank you!

17th February 2003, 08:46 PM	(permalink)
bogdanfirst	so yuo need something like a robingo button? the first person to push wins?

17th February 2003, 11:37 PM	(permalink)
Wired	Yes! __________________ Preachin\' Jesus to the young uns!

18th February 2003, 05:55 PM	(permalink)
kinjalgp	The schematic is not at all clear. Look at the floating connections. __________________ "There is no way to peace, peace is the way!"

18th February 2003, 06:14 PM	(permalink)
bogdanfirst	no actually i left them floateing to suggest that you can add as many modules as you want. theay are not floating, they go somewere.

18th February 2003, 06:33 PM	(permalink)
kinjalgp	You have made a closed loop in the circuit on the left side. I know you are trying to say that the points are connected somewhere on the right side schematic but this is not the exact way of showing that. You know here all the points seem to be short circuited. You can just name the signal to show that there is a connection between two points which are not joined through a wire. __________________ "There is no way to peace, peace is the way!"

18th February 2003, 07:32 PM	(permalink)
bogdanfirst	i drew the scehmatic fast. i will draw a new one when i have time. please exzuse me for that.!

18th February 2003, 09:21 PM	(permalink)
Sebi	The circuit is O.K., but module number4 and mod.num5 changed.I mean for LED no need a transistor, simply hook up to 4011 pin10. And connect the buzzer with NPN transistor to pin11.

18th February 2003, 10:43 PM	(permalink)
Wired	Thanks for all the input! I am enjoying this. __________________ Preachin\' Jesus to the young uns!

19th February 2003, 07:57 PM	(permalink)
bogdanfirst	thats right. i noticed that, the circuit is origianly taken from an elektor magazine form 70' . i agree the 4011 can handle enough curent to drive the led. i will scan the ciruit as soon as i set up my scanner, because i dont use it very often